1,Rate of flow:25L/min 2,Normal working pressure:12BAR 3,The max working pressure:15BAR 4,Fan power:48W 5,Fan voltage:AC220V AF series productions especialy useialy use the aluminium material of the weight is light, aseismatic, the high efficiency of heat exchange,on the stucture, inside the radiator tube,it have another finned, finned, can aggrandize the area of radiator, expedite the heat he ...